Netscaler : Invalid argument [ns] error while logon on UI (admin)

When you did customize your Access Gateway theme, you might have this error trying to logon on the admin page of your Netscaler. No worries there is a simple solution to fix it. Never the less, you need to remember to change your Access Gateway theme customization back to default prior performing a Netscaler upgrade.

So if you can’t login on your Netscaler to perform administrative task because of this error, here is how you need to proceed.

Open a ssh shell (using putty if you’re on a Windows machine) and go to the /nsconfig directrory